Which of the following are the creations of Tota Krishna

If a + b + c = 12 and ab + bc + ca = 50, then find the value of a² + b² + c².

[a/(2a²  + 5a + 2)] = 1/6 , then find the value of (a+1)/a ?

Rs. 25200 is invested in 3 parts in such a way that Simple Interest on 1^st Part at 4% per annum for 3 years, Simple Interest on 2^nd

If x/y = 5/3, Find (x+y)/(x-y)?

If (Ax + By - Cz) ²  = 4x ²  + 3y ²  + 2z ²  + 4√3xy - 2√6yz - 4√2xz, then find the value of A

If (x – 1/x) = 3, find (x³ – 1/x³).

If q = 105, then what is the value of

If a² + c² + 17 = 2(a - 8b - 2c²), then what is the value of (a³ + b³ + c³)?

If x + 1/x = 5, find: x² + 1/x²